Mixing-machine.



s. F. HANSON, MIXING MAbHlNE'. APPLICATION FILED APR.3, 1913. 547 Patented Aug. 5, 1913.

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S. F. HANSON.

MIXING MACHINE.

APPLICATION FILED APR.3, 191s.

Patented Aug. 5, 1913:

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a v wuowboz S. F .fifq nson SOREN r. HANSON, or SIDNEY, IOWA.

MIXING-MACHINE.

Specification of Letters Patent.

Patented Aug. 5,1913.

Application filed April 3, 1913. Serial No. 758,519.

To all whom it may concern:

Be it known that I, SoRnN F. HAN'soN, a citizen of the United States, residing at Sidney, in the county of Fremont and State of Iowa, have invented certain new and useful Improvements in Mixing-Machines and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

An object of this invention is the provision of a manually operable machine for quickly and thoroughly mixing plastic compounds such as cement, concrete and plaster.

Another object is to provide paddles rotatable within a receptacle and disposed in planes oblique to their longitudinal axis and adapted to be rotated first in one direction and then in the other for moving the contents of the receptacle first to one and then to the other end thereof.

Another object is to provide resiliently movable end paddles adapted to be shifted by the resistance of a pile of mixing material accumulated at either end of the receptacle and thus prevent overflowing of the contents from the ends of the receptacle.

In the accompanying drawings, Figure 1 represents a top plan view of my improved mixing machine. Fig. 2 represents a sectional view on the line 2-2 of Fig. 1. Fig. 3 represents a fragmentary detail view of the mounting for the end paddles. Fig. 4 represents a view in end elevation of the complete mixing machine, and, Fig. 5 rep resents a vertical sectional view therethrough.

Referring to the drawings, wherein similar reference characters correspond with similar parts throughout the several views, the numeral 1 indicates a base frame over which is mounted a receiving box 2 for receiving the material dumped from themixer, and the vertically extending standards 3 having the upper ends thereof bifurcated to pivotally receive the shaft of the mixing tank to be hereinafter described.

The tank 4: comprises a semicylindrical section of material having the circular ends 5 secured therein. A shaft 6 projects diametrically through the ends 5 and is secured therein by the nuts 7 threaded sleeves 8 rotatable upon the shaft 6. The sleeves 8 project a short distance outwardly of the ends of the tank and are pivotally mounted lin the bifurcated ends of the standards 3,

and either one or both the ends of the shaft f are provided with a rigid operating lever 9. The portion of the shaft 6 within the tank 4: is apertured at intervals to receive the shanks 10 of the inner paddles 11, the shanks of the end paddles 11 being pivotally mounted through slots 12 in the shaft by the pins 13. The end shanks are normally held in vertical and parallel position by the spring 14: which is secured at opposite ends through openings formed in the projecting portions 15 of said shanks. A plurality of openings is formed in the projecting ends 15 of the end shanks to accommodate adjustment of the spring 14 for increasing or decreasing the tension of the end paddles 11. The inner shanks 10 are adjustably connected to the shaft 6 by the nuts 16, whereby the length of the paddles may be decreased or increased and the inclination in respect to the longitudinal axis of the shaft 6 adjusted. The end paddles 11 are adjustablysecured to the ends of their respective shanks by means of bolts 17 positioned through slots 18, as clearly shown in Fig. 3. The tank 4 is normally supported in operative position and prevented from tilting to either side by means of the locking lever 19, pivoted to one of the end pieces 5 and having a notch adjacent the pivoted end for engaging over the catch 20 secured to one of the standards 3. The locking lever 19 is curved and notched at 21, adjacent the free end thereof to provide a means for locking the tank in tilted position.

A suitable tilting lever 22 is secured to one of the end pieces 5 for the purpose of dumping the tank.

In operation, the tank 4: is filled with material to be mixed until said material somewhat more than covers the tops of the paddles. The shaft 6 is then rotated by means of the hand lever 9, first several revolutions in one direction and then several revolutions in the opposite direction, so as to thoroughly distribute and mingle the contents of the tank. The inclination of each of the paddles 11 is coincident and oblique to the longitudinal axis of the shaft 6, whereby when said shaft is rotated in one direction, the contents is piled in one end of the tank, and when rotated in the opposite direction, the contents is moved to the opposite end of the tank.

It will be understood that the resilient mounting of the end paddles 11 permits said paddles to be moved by the resistance of the material when the latter is piled in one end of the tank, and thus prevent the material from overflowing at either end thereof.

lVhat I claim is 1. A mixing machine comprising a pivotally mounted tank, a shaft rotatably mounted therein, adjustable paddles carried by said shaft, means for pivotally mounting the end paddles, and means for resiliently supporting the end paddles in parallel relation to the others.

2. A mixing machine comprising a tank, a shaft rotatable in said tank, paddles adjustably secured to said shaft, end paddles pivoted to said shaft and having extended ends, and a resilient connection between the extended ends of said end paddles for normally holdingthe latter in parallel relation to the other paddles.

3. A mixing machine providing a tank, a shaft rotatable therein, paddles adjustably secured to said shaft, end paddles pivoted to said shaft, means for holding said pad dles against the ends of said tank, and means for varying the tension. of said end paddles.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SOREN F. HANSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G. i 

